It consists of one species, G. ahangari, isolated from the Guaymas Basin hydrothermal system located deep within the Gulf of California.
Amazon Basin | Great Basin | drainage basin | Drainage basin | Tarim Basin | Congo Basin | Basin Reserve | Vienna Basin | Thuringian Basin | Permian Basin | Guaymas | Columbia Basin | basin | Amazon basin | Pannonian Basin | Niya (Tarim Basin) | Sydney Basin | Sorbas basin | Melut Basin | Los Angeles Basin | Great Basin Desert | David Taylor Model Basin | Chicago Basin | Bedford Basin | Basin Street | Badwater Basin | Anadarko Basin | Western Canadian Sedimentary Basin | Tonto Basin, Arizona | Sichuan Basin |